- Group 3 (relapsed disease, CD3-negative immunophenotype, and received vinblastine during frontline therapy): Patients receive 2 courses of CC chemotherapy and 1 course of CVA chemotherapy as described above. Patients undergo leukapheresis for collection of autologous peripheral blood stem cells (PBSC) after the first and/or second course of CC chemotherapy. Patients then proceed to autologous stem cell transplantation.